Sealing-head for applying jar caps or closures.



LD. SCHMITT. SBALING HEAD FOR APPLYING JAR CAPS 0R GLOSURBS..

Patented Jan. 10, 1911.

APPLICATION FILED 1330.6, 1909.

'UNITED sTATEs PALLENT ernten.

EDWARD D. SCHMITT, OF BALTIMORE, MARYLAND, ASSIGNOR, BY DIRECT AND MESNE ASSIGNMENTS, TO THE PURE FOOD PROCESS COMPANY, 0F BALTIMORE, MARYLAND,

A CORPORATION OF MARYLAND.

SEALING-HEAD FOR APPLYING JAB CAPS OR CLOSURES. i

" Specification ofLetters atent.v Patented J 31,11.A 10, 1911.

Application filed December 6, 1999. Serial No. 531,740.

ymovedtoward the head, or the head moved toward the jar, which may be supported upon a 'suitable support below the head, it making no difference, so long as the desired. pressure necessary to apply the cap, is brought about.

The object ofthe invention isto provide a simple durable and effective `mechanism for seating the cap or closiireftirnily u onA the jar and indenting the flange thereo t at intervals into locking engagement Vwith t-he .locking shoulder on the j ar neck.

In the dra-wings illustrating the invention: Figure 1 is a central partially sectional view of the scaling head, with the parts in normalposition; F ig. 2 is a similar View showing the position 'the parts assume in applying the seal; Figisarearelevation of two of the seal indenting lingers; Fig. 4 is a top plan view and section of the ring which contains the devices for yieldinglypperat in the locking lingers.

eferring to the drawings, the numeral lv ldesignates the upper part of the head'casing.

which is provided witha bore Q forthe reception of a sealing spring 3 which rests at its lower end upon the circular cross-head 4 of the seal applying plunger 5,'which head rests upon an annular shoulder in the lower part of the bore 2. The plunger' stem is provided with an annular inclined shoulder 7, the purpose of which will presently be described, and a bearing portion 8' which is hollowed out as indicated at 9- and adapt` ed to tit ever the cap or closure in the seal applying operation. The lowenpart of the head is formed of two members 10 and 11,

tlf upper member 10 being externally threaded as indicated atY 12, whereby it is' connected to the lower enlarged part 13 of' ber 11.

The numeral 17 designates the seal lockthe upper part 1. The member 10 is threaded at its lower edge as indicated at 14,

'to receive the threads in the upper part ot' the member 11, whereby the two members 10 and 11 are connected together. The lower edge of the member' l() is provided with a groove 15 extending entirely around its lower edge, which corresponds with a groove 16 in the upper edge of the meming lingers, a plurality of which, suit-ably spaced apart are employed, and adapted, in the sealing operation, to be yieldingly actuated to lock the flange of the seal in locking engagement with the shoulder on the outside of the jar. Each locking finger is formed with a downwardly extending arm 18 .provided with an inwardly-turned sealindenting point 19, and with an upwardly extending arm 20 provided with a head 21 engaging a spiral spring 22, each spring being contained within a slidable cut 23 vmounted in a radial recess'24 in a ring 25.

said ring being bolted to the upper part ot the member 10 by bolts 26. Each seal. loclting linger is provided with a short integral extension 27, each of which is provided. centrally and at opposite ends with short studsl 28. These extensions fit snugly 1n the annular groove formed by the tw'o correspoudii'lggrooves 15 and 16 in the members 10 and 11 and are'adapted to rock and cause the seal indenting lingers to be forced into engage ment with the flange of the cap at intervals to lockit under the locking shoulder of the receptacle to be closed. The.: cups Q3 are beveled at their inner ends as designated at 2S), which ends extend into the path of movement of the inclined' or beveled shoulder 7 of the shank of the plunger',` so that when the plunger is raised, said portion 7 will engage the beveled ends ot' the cups and force them outward simultaneously, thus causing the locking fingers through the medium -of the spiral springs within the cups, to be rocked upon their pivotsto bring their lower indenting ends 4into action t-o lock the seal.

The upper part of the head casing has integral therewith a web 30. which connects.l

the head with a cylindrical sleeve 31 which receives the rod 32, which may be reciprocated to move the head 'to andfrom a suitable bottle support.. It the head is to remain seal at intervals.

against the lower portion 8 o the'plunger,

forcing said plunger upwardly against the pressure of the sealing spring 3. The upward movement of the plunger brings the inclined bevel shoulder 7 on the shank of the plunger into engagement with the bev,-

eled ends 29 of the sliding cups 23 within'the radial recesses of the ring 25, causing the devices to simultaneously move outward, coinpressing the springs 22 slightly, and causing lthem to act yieldingly against the upper ends 21 of the seal locking fingers, thus forcing the lower indeiiting ends of the fingers inward, where they engage the flange of the Upon withdrawal of the jar, the plunger is returned to normal position by the sealing spring and its downward movement is limited by a ledge 33 in the lower part of the casing.

`of seal locking Having thus fully tion, what I claim is:

`l. A head for applying caps or closures tol jars and like receptacles, comprising a casing, a spring pressed seal'applying plundescribed my inven- 'ger in said casing, having a `portion adapted to bear upon the cap and a shank having an 35 annular inclined. beveled shoulder thereon, a ring surrounding said plunger and having a series of recesses therein, a cup-sliaped device infeach of said recesses, said device having beveled ends extending into the path of movement ofthe inclined or beveled shoulder on the plunger shank, a plurality lingers. rockably supported in the lower part of the head casing, and

'having lower ends adapted vto indent the cap or seal at intervals, for the purpose set forth, springs interposed between the cupshaped device and the upper ends of said fingers, whereby, when the plunger is raised, the fingers will be yieldingly rocked to act upon the flange of the cap.

'l 2. In a sealing head for applying caps or closures to jars'and like receptacles, the s .combination with a spring-pressed plunger having a portion adapted to bear .ipon the jar cap oriclosure, said plunger havinga shank having a beveled or inclined shoulder thereon, a ring surrounding said plunger andliaving radial recesses therein, a sliding cup-shaped device in each recess, provided wit'h inclined inner ends,` extending into the path of'movement of the shoulder upon the shank, a plurality of seal locking fingers having extensions thatjbear in the lower part of the head casing, of a means for Vspaeingsaid fingers apart, the fingers being lfingers, through the medium of the cupprovided, at their lower ends with seal indenting points, for the purpose set forth, a spiral rspring interposed between each sliding cup and the upper end of the` seal locking fingers, whereby when the plunger is moved upward, and the cups moved laterally, the fingers will bev rocked to act upon the flange of the ca or closure.

3.' A sealing hea for applying caps or closures to jars or like receptacles, compris- 7 ing a casing having a lower part formed of two separablemembers, an `annular groove in each member, at the oint of juncture of said members, a plurality of seal locking fingers having extensions rockably resting in the groove between said members, means for suitably spacing from' each other, the extensions, and thereby the fingers, a spring pressed sealing plungerrwithin said. casing and having a shank providedr withan annular inclined or beveled shoulder, a ring surrounding the plunger shank and carrying a plurality of sliding cup-shaped de 'vices having inner beveled ends 1in the path of movement of the should or inclined i, portion of the plunger shank, )iral springs interposed between the sliding devices and the upper ends ofthe locking fingers, whereby whenthe plunger is raised, the locking shaped devices and the springs, -the seal locking fingers will be actuated. l

4. A head for applying caps or closures to jars and like receptacles, comprising a casing, a spring-pressed seal applying plunger in said casing havin@ a portion adapted to b'ear u on the cap anl a shank having a cam sur ace thereon, a plurality of seal locking fingers rockably supported in the lower part 'of the head casing and havin" 105 -lower ends adapted to indent the cap or seal at intervals, a plurality of devices surround- Aing the plunger shank, and having camsurfaces adapted to be engaged by the cani surface on the plunger shank to force said de. 110 vices outwardly upon the upw'ard movement of the plunger, 4springs interposed between said devices and the rockable seal locking fingers, whereby the lower ends of said fingers aresimultaneously forced yieldingly inward to act upon tlie flange of the cap.

5. A head for applying caps or closures to jars and like receptacles, comprising a casing, a spring pressed seal applying plunger in said casing having a portion adapted tol bear upon the cap and a shaiik having a cam surface thereon, said casing having a lower part forined'of two separable members, each having an annular groove at the point of juncture of said members, a plurality of seal locking fingers havinor extensions rockably resting in the groove tbetween said members, means for spacing said ex; tensions from each other, and thereby the fingers, a .plurality of devices surrounding .the plunger shank upon the upward lnovey esi-,ooe a the lplunger and having cam surfaces adaptlocking fingers are simultaneously forced ed to be engaged by the asiniy surface upon inward to act upon the ange of the cap.

In testimony. whereof I ailix my signature -in presence of two witnesses. Y

' EDWARD D. SCHMITT. Witnesses:

JOSEPH E. HUNTER, G. RUSSELL BIXLER.

ment of the plunger, to force said devices laterally simultaneously, 'a spring interposed between each device `and each seal locking linger whereby, upon the upward movement of the plunger the lower ends' of the seal 

